Physics > oscillations-and-waves > Waves

The pressure wave, $P = 0.01\sin[1000t - 3x]\ \text{Nm}^{-2}$, corresponds to the sound produced by a vibrating blade on a day when atmospheric temperature is 0°C. On some other day when the temperature is $T$, the speed of sound produced by the same blade at the same frequency is found to be $336\ \text{ms}^{-1}$. The approximate value of $T$ is: